TWI798998B - Fan system and monitoring method for fan system - Google Patents

Abstract

A fan system and a monitoring method are provided. The fan system includes a fan unit and a controller. The fan device includes a fan unit, a detector, and a memory. The detector detects an operating state of the fan unit during operation to obtain an operating raw data corresponding to the operating state. The memory records the operating raw data and stores a data protocol. The controller provides a monitoring request to make the memory provide the operating raw data and data protocol to the controller, uses the data protocol to convert the operating raw data into an operating state data, and provides an early warning notification signal based on the operating state data. When the operating raw data is provided to the controller, the operating raw data stored in the memory is erased.

Description

Fan system and monitoring method for fan system

The present invention relates to a fan system and a monitoring method for the fan system, and in particular to a fan system and a monitoring method capable of providing early warning notifications according to fan operating conditions.

Most devices (such as production equipment, personal computers, notebook computers, etc.) use fans for cooling. Cooled by the fan, the unit runs smoothly. However, fans are often viewed as low-reliability components. If the fan is abnormal or fails, it will cause the device to overheat and shut down or be damaged. Therefore, the fan needs to be replaced or repaired before abnormality or failure occurs. From this, it can be seen that how to construct a fan monitoring technology capable of providing an early warning notification according to the operating status of the fan is one of the research and development focuses of those skilled in the art.

The invention relates to a fan system and a monitoring method for the fan system, capable of providing early warning notifications according to the operating status of the fans.

The fan system of the present invention includes a fan device and a controller. The fan unit includes a fan unit, a detector, and a memory. The detector detects the running status of the fan unit to obtain raw running data corresponding to the running status. The memory is coupled to the detector. The memory is operated to record running raw data, and to store data protocols. The controller provides the monitoring request, and the memory responds to the monitoring request to provide the operating raw data and the data protocol to the controller, and uses the data protocol to convert the operating raw data into the operating state data. The controller also provides an early warning notification signal according to the operating status data. When the running raw data is provided to the controller, the running raw data stored in the memory is erased.

The monitoring method of the present invention is applicable to fan systems. The fan system includes a fan device and a controller. The fan device includes a fan unit and a memory. The monitoring method includes: driving the fan unit, and detecting the operating status of the fan unit during operation to obtain raw operating data corresponding to the operating status; recording the raw operating data in the memory; using the controller to provide monitoring requests, making the memory Respond to the monitoring request to provide the operating raw data and the data protocol to the controller, and use the data protocol to convert the operating raw data into the operating state data; when the operating raw data is provided to the controller, erase the memory stored in the memory Running raw data; and using the controller to provide early warning notification signals based on the running status data.

Based on the above, in the fan system and the monitoring method of the present invention, the controller provides the monitoring request to receive the original operating data and the data protocol through the memory, and converts the original operating data into the operating state data by using the data protocol. Therefore, the controller can provide an early warning notification signal. Additionally, when running raw data in the When the controller is turned off, the original running data stored in the memory will be erased. In this way, the memory space requirement of the memory of the fan system can be greatly reduced.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail together with the accompanying drawings.

100, 200, 300, 400: fan system

110, 210, 310, 410: Fan device

120, 220, 320, 420: Controller

111, 211, 311, 411: fan unit

112, 412: software

212, 312: detector

213, 313: memory

314: timer

430: Monitoring terminal

C1, C2, C3: curves

DPR: drive parameters

Idr: drive current value

Id: preset current value

ORD, ORD1, ORD2: run raw data

OSD: Operating Status Data

P1~P5: period

PTC: Data Protocol

REQ: Monitoring Request

S110~S150: steps

S210~S270: steps

SN, SN1, SN2: early warning notification signal

t1: time point

td: preset time length

Temp: Ambient temperature value

Tpd: preset temperature value

ts: total running time length

FIG. 1 is a schematic diagram of a fan system according to a first embodiment of the present invention.

FIG. 2 is a schematic diagram of a fan system according to a second embodiment of the present invention.

FIG. 3 is a flowchart of a monitoring method according to a second embodiment.

FIG. 4 is a schematic diagram of a fan system according to a third embodiment of the present invention.

FIG. 5 is a flowchart of a monitoring method according to a third embodiment.

FIG. 6 is a waveform diagram of running state data according to an embodiment of the present invention.

FIG. 7 is a waveform diagram of running state data according to another embodiment of the present invention.

FIG. 8 is a waveform diagram of running state data according to yet another embodiment of the present invention.

FIG. 9 is a schematic diagram of a fan system according to a fourth embodiment of the present invention.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following description refers to the reference numerals, when the same numerals appear in different drawings, they will be regarded as the same or similar elements. These embodiments are only a part of the present invention, and do not reveal all possible implementation modes of the present invention. Rather, these embodiments are only examples within the scope of the patent application of the present invention.

Please refer to FIG. 1 , which is a schematic diagram of a fan system according to a first embodiment of the present invention. In this embodiment, the fan system 100 includes a fan device 110 and a controller 120 . The fan device 110 includes a fan unit 111 and software 112 . The fan unit 111 may be, for example, a cooling element that uses a motor to drive fan blades to achieve a cooling effect. The fan device 110 can communicate with the controller 120 through the software 112 . Specifically, the software 112 will record the operating raw data ORD of the fan device 110 during operation. The operating original data ORD includes at least one of a driving current value, a driving voltage value, an ambient temperature value, and a running time length of the fan device 110 during operation, for example. The controller 120 can be, for example, an electronic device with a computing function. The controller 120 and the fan device 110 can communicate through wired communication or wireless communication known to those skilled in the art. The controller 120 provides the monitoring request REQ to the fan device 110 . In this embodiment, the software 112 provides the operating original data ORD and the data protocol PTC to the controller 120 in response to the monitoring request REQ. The data protocol PTC is used to indicate the encoding rule or format category of the running original data ORD. The controller 120 converts the operating original data ORD into the operating state data OSD by using the data protocol PTC. In this embodiment, the controller 120 also provides an early warning notification signal SN according to the operating status data OSD. The early warning notification signal SN can be at least one of audio signal, light signal and text signal. based on Based on the judgment of the operating state data OSD, the controller 120 can issue an early warning notification signal SN before an abnormality or failure occurs. In this way, the user (or manager, maintainer) can repair or replace the fan device 110 according to the warning signal SN. In this embodiment, the fan device 110 can implement the above-mentioned operations of the software 112 with multiple physical components.

In this embodiment, the controller 120 may provide the monitoring request REQ periodically. In some embodiments, the controller 120 provides the monitoring request REQ based on an external operation or an external instruction.

In addition, in this embodiment, the format of the running original data ORD is the first data format suitable for the fan device 110 . The format of the operating status data OSD is the second data format recognized by the controller 120 . The controller 120 can use the data protocol PTC to convert the operating original data ORD having the first data format into the operating status data OSD that the controller 120 can recognize. That is to say, the data format of the fan device 110 in the fan system 100 may be different from the data format of the controller 120 . In this way, the fan system 100 is not limited to the fan device 110 and the controller 120 having the same data format.

In some embodiments, the fan system 100 may include multiple fan devices, and the number of fan devices of the present invention is not limited to this embodiment. In some embodiments, the data formats of the multiple fan devices may not be completely the same. For example, the plurality of fan devices include a first fan device and a second fan device. The data format of the first fan device is different from the data format of the second fan device. The controller 120 may convert the first operating source of the first fan device according to the first data protocol of the first fan device The data is converted into the first running state data that the controller 120 can identify. The controller 120 can convert the second operating raw data of the second fan device into second operating state data recognizable by the controller 120 according to the second data protocol of the second fan device.

Please refer to FIG. 2 and FIG. 3 at the same time. FIG. 2 is a schematic diagram of a fan system according to a second embodiment of the present invention. FIG. 3 is a flowchart of a monitoring method according to a second embodiment. In this embodiment, the fan system 200 includes a fan device 210 and a controller 220 . The fan device 210 includes a fan unit 211 , a detector 212 and a memory 213 . The memory 213 is coupled to the fan unit 211 and the detector 212 . In step S110, the fan unit 211 operates in response to the driving parameter DPR. The detector 212 detects the operating status of the fan unit 211 to obtain operating raw data ORD corresponding to the operating status. In this embodiment, the memory 213 stores the driving parameter DPR, and the fan unit 211 can receive the driving parameter DPR through the memory 213 and operate in response to the driving parameter DPR, thereby producing a cooling effect. In this embodiment, the operating original data ORD includes at least one of the driving current value used to drive the fan unit 211, the driving voltage value used to drive the fan unit 211, the ambient temperature value, and the length of running time, for example. . Therefore, the detector 212 includes at least one of a current sensor, a voltage sensor, a temperature sensor and a timer, for example. The memory 213 can be any form of data storage element.

In step S120 , the operating original data ORD is recorded in the memory 213 . That is to say, the memory 213 is operated to record the operating original data ORD.

In this embodiment, the memory 213 also stores the data protocol PTC. In step S130 , the controller 220 provides a monitoring request REQ to the fan device 210 . remember The memory 213 provides the operating original data ORD and the data protocol PTC to the controller 220 in response to the monitoring request REQ. The controller 220 converts the operating original data ORD into the operating state data OSD by using the data protocol PTC. The detailed implementation of converting the operating original data ORD into operating state data OSD by the controller 220 can be sufficiently taught by the embodiment of FIG. 1 , so it will not be repeated here.

Next, in step S140, the operating original data ORD stored in the memory 213 is erased. That is to say, when the operating original data ORD is provided to the controller 220, the operating original data ORD stored in the memory 213 is erased. For example, when the controller 220 receives the data protocol PTC and the complete operating original data ORD, the operating original data ORD stored in the memory 213 will be erased by the controller 220 . For another example, the fan device 210 will erase the operating original data ORD stored in the memory 213 . In this embodiment, the detector 212 and the memory 213 can realize the operation of the software 112 as shown in FIG. 1 .

It is worth mentioning here that the controller 220 may periodically provide a monitoring request REQ. Therefore, the controller 220 may provide the monitoring request REQ based on a preset period (for example, 1-5 minutes, the present invention is not limited thereto). Therefore, in step S140, the operating original data ORD stored in the memory 213 will be erased based on a preset period. It can be seen that the memory space requirement of the memory 213 only needs to accommodate the data protocol PTC, the driving parameter DPR, and the operating original data ORD of a single preset cycle. In this way, the memory space requirement of the memory 213 can be greatly reduced.

In step S150, the controller 220 provides an early warning notification signal SN according to the operating state data OSD. For example, the controller 220 records a preset value (eg, preset current value). The preset value is lower than the driving current value when the fan unit 211 is abnormal or fails. Therefore, once the driving current value in the operating state data OSD is judged to be greater than the preset value, the controller 220 issues a corresponding warning signal SN. In this way, based on the judgment of the operating state data OSD, the controller 220 can issue an early warning notification signal SN before the fan unit 211 becomes abnormal or fails, so that the user can repair, maintain or repair the fan unit 110 according to the early warning notification signal SN. replace.

Please refer to FIG. 4 and FIG. 5 at the same time. FIG. 4 is a schematic diagram of a fan system according to a third embodiment of the present invention. FIG. 5 is a flowchart of a monitoring method according to a third embodiment. In this embodiment, the fan system 300 includes a fan device 310 and a controller 320 . The fan device 310 includes a fan unit 311 , a detector 312 , a memory 313 and a timer 314 . The memory 313 is coupled to the fan unit 311 , the detector 312 and the memory 313 . In step S210, the fan unit 311 starts to be driven. In addition, the timer 314 starts timing. In this embodiment, when the fan unit 311 is running, the timer 314 will continuously count the running time of the fan unit 311 . In this embodiment, the timer 314 continuously counts the running time of the fan unit 311 to provide the running raw data ORD2 corresponding to the length of the running time. In this embodiment, the detector 312 , the memory 313 and the timer 314 can realize the operation of the software 112 as shown in FIG. 1 .

In step S220 , the detector 312 detects the operation status of the fan unit 311 during operation to obtain the original operation data ORD1 . The operating raw data ORD1 includes, for example, at least one of a driving current value, a driving voltage value, and an ambient temperature value.

In step S230, the fan device 310 determines whether a monitoring request REQ is received. When the monitoring request REQ is not received, the fan device 310 will perform the operation of step S220 to continuously obtain the original operating data ORD1, ORD2. On the other hand, when receiving the monitoring request REQ, the fan device 310 will make the memory 313 provide the operating original data ORD1, ORD2 and the data protocol PTC to the controller 320 in step S240. In addition, the controller 320 uses the data protocol PTC to convert the operating original data ORD1, ORD2 into the operating state data OSD in step S240.

In step S250 , the operating original data ORD1 and ORD2 stored in the memory 313 are erased.

In step S260, the controller 320 determines whether the operating state data OSD is greater than a preset value. When the operating state data OSD is greater than the preset value, the controller 320 will provide an early warning notification signal SN in step S270. On the other hand, when the operating state data OSD is less than or equal to the preset value, the fan device 310 will perform the operation of step S220 to obtain the original operating data ORD1 and ORD2 continuously.

In this embodiment, based on design requirements, when the warning signal SN is provided, the fan device 310 will continue to obtain the original operating data ORD1, ORD2, or stop obtaining the original operating data ORD1, ORD2.

Further examples are given to illustrate the implementation details of judging the running status data. Please refer to FIG. 4 and FIG. 6 at the same time. FIG. 6 is a waveform diagram of operating state data according to an embodiment of the present invention. In this embodiment, the operating state data OSD includes the total operating time ts of the fan unit 311 . In this embodiment, the total running time length ts is related to the running raw data ORD2 provided by the timer 314 . Run the original The original data ORD2 is shown in curve C1. In this embodiment, the controller 320 determines whether the total running time length ts is greater than a preset time length td. When the total running time ts is greater than the preset time td, the controller 320 will provide an early warning notification signal SN. In this embodiment, the warning notification signal SN is a notification signal corresponding to the total running time length ts being greater than the preset time length td.

In this embodiment, the preset time length td is set to be shorter than the expected life of the fan unit 311 , or equal to the maintenance period.

In this embodiment, the controller 320 provides the monitoring request REQ based on a preset period (for example, 1-5 minutes, the present invention is not limited thereto). Therefore, the controller 320 will receive multiple total running time lengths ts corresponding to the multiple time points at multiple time points after the periods P1 - P5 . That is to say, the multiple total running time lengths ts of the multiple time points are roughly the sampling results of the curve C1. In this embodiment, the multiple total running time lengths ts received at multiple time points after the periods P1 - P4 are determined to be less than the preset time length td. Therefore, the controller 320 does not provide the early warning notification signal SN. On the other hand, the total running time length ts received at the time point after the period P5 is greater than the preset time length td. This indicates that the total running time ts of the fan unit 311 is about to reach the expected life time, or needs to be maintained. Therefore, the controller 320 will provide the early warning notification signal SN at a time point after the period P5.

In some embodiments, the controller 320 can learn that the total running time length ts will be equal to the preset time length td at the time point t1 from multiple total running time lengths ts received at multiple time points after the period P1-P4 . Therefore, the controller 320 will be at The time point t1 provides an early warning notification signal SN.

Please refer to FIG. 4 and FIG. 7 at the same time. FIG. 7 is a waveform diagram of operating state data according to another embodiment of the present invention. In this embodiment, the operating state data OSD includes a driving current value Idr for driving the fan unit 311 . In this embodiment, the driving current value Idr is related to the operating raw data ORD1 provided by the timer 314 . Run original data ORD1 as shown in curve C2. In this embodiment, the controller 320 determines whether the driving current value Idr is greater than the preset current value Id. When the driving current value Idr is greater than the preset current value Id, the controller 320 will provide an early warning notification signal SN. In this embodiment, the warning notification signal SN is a notification signal corresponding to the driving current value Idr being greater than the preset current value Id.

In this embodiment, the preset current value Id is set to be smaller than the limiting current value. The limit current value is a current value that may cause damage to the fan unit 311 .

In this embodiment, the controller 320 provides the monitoring request REQ based on a preset period. Therefore, the controller 320 receives a plurality of driving current values Idr corresponding to the plurality of time points at a plurality of time points after the periods P1 - P5 . That is to say, the multiple driving current values Idr at the multiple time points are roughly the sampling results of the curve C2. In this embodiment, a plurality of driving current values Idr received at a plurality of time points after the periods P1 - P4 are determined to be smaller than the preset current value Id. Therefore, the controller 320 does not provide the early warning notification signal SN. On the other hand, the received driving current value Idr is greater than the preset current value Id at the time point after the period P5. This indicates that the drive current value Idr is abnormal. Therefore, the controller 320 will provide the early warning notification signal SN at a time point after the period P5.

Please refer to FIG. 4 and FIG. 8 at the same time. FIG. 8 is a waveform diagram of operating state data according to yet another embodiment of the present invention. In this embodiment, the operating status data OSD includes the ambient temperature value Temp. In this embodiment, the ambient temperature value Temp is associated with the operating raw data ORD1 provided by the timer 314 . Run original data ORD1 as shown in curve C3. In this embodiment, the controller 320 determines whether the ambient temperature value Temp is greater than the preset temperature value Tpd. When the ambient temperature Temp is greater than the preset temperature Tpd, the controller 320 will provide an early warning notification signal SN. In this embodiment, the warning notification signal SN is a notification signal corresponding to the ambient temperature value Temp being greater than the preset temperature value Tpd.

In this embodiment, the preset temperature value Tpd is set to be smaller than a limit temperature value. The limit temperature value is a temperature value that may cause damage to the fan unit 311 , or a temperature value that may cause damage to the device.

In this embodiment, the controller 320 provides the monitoring request REQ based on a preset period. Therefore, the controller 320 will receive multiple ambient temperature values Temp corresponding to the multiple time points at multiple time points after the periods P1 - P5 . That is to say, the multiple ambient temperature values Temp at the multiple time points are roughly the sampling results of the curve C2. In this embodiment, a plurality of environmental temperature values Temp received at a plurality of time points after the periods P1 - P4 are determined to be smaller than the preset temperature value Tpd. Therefore, the controller 320 does not provide the early warning notification signal SN. On the other hand, the ambient temperature value Temp received at the time point after the period P5 is greater than the preset temperature value Tpd. This indicates that the cooling capacity of the fan unit 311 may be insufficient or fail. Therefore, the controller 320 will provide the early warning notification signal SN at a time point after the period P5.

Please return to the embodiment of Fig. 4 and Fig. 5, the operating status data OSD includes the driving current value (driving current value Idr as shown in Fig. 7), driving voltage value, ambient temperature value (environmental temperature value as shown in Fig. 8 At least two of the temperature value Temp) and the total running time length (the total running time length ts shown in FIG. 6 ). Therefore, the controller 320 judges at least two of the driving current value, the driving voltage value, the ambient temperature value, and the total running time to obtain a judgment result, and provides a corresponding warning signal SN according to the judgment result.

Please refer to FIG. 9 , which is a schematic diagram of a fan system according to a fourth embodiment of the present invention. In this embodiment, the fan system 400 includes a fan device 410 , a controller 420 and a monitoring terminal 430 . The fan device 410 includes a fan unit 411 and software 412 . The monitoring terminal 430 and the controller 420 can communicate through wired communication or wireless communication well known to those skilled in the art. The cooperative operation of the fan device 410 and the controller 420 in this embodiment can be sufficiently taught by the multiple embodiments shown in FIG. 1 to FIG. 8 , so it will not be repeated here. In this embodiment, the monitoring terminal 430 collects the early warning notification signal SN1 through the controller 420, and issues the early warning notification signal SN1. The user can repair or maintain the fan device 410 according to the warning signal SN1 issued by the controller 420 or the monitoring terminal 430 . In addition, the monitoring terminal 430 collects the early warning notification signal SN2 from other controllers (not shown), and issues the early warning notification signal SN2. Therefore, the monitoring terminal 430 can issue the early warning notification signals SN1, SN2. In this embodiment, the monitoring terminal 430 may be a background host, a server and other devices.

In some embodiments, based on design requirements, fan system 400 may include Multiple fan units and multiple controllers. It is not limited to this embodiment.

To sum up, in the fan system and monitoring method of the present invention, the controller provides the monitoring request to receive the raw running data and the data protocol through the memory, and converts the raw running data into running state data by using the data protocol. In this way, the controller can issue an early-warning notification signal before abnormality or failure occurs, so that users can repair or replace the fan device according to the early-warning notification signal. The data format of the fan unit may be different from the data format of the controller. In this way, based on the data protocol, the fan system is not limited to fan devices and controllers having the same data format. In addition, when the original operating data is provided to the controller, the original operating data stored in the memory is erased. In this way, the memory space requirement of the memory of the fan system can be greatly reduced. In some examples, the fan system also includes a monitoring terminal. The user can repair or maintain the fan device according to the early warning signal issued by the controller or the monitoring terminal.

Although the present invention has been disclosed above with the embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field may make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention should be defined by the scope of the appended patent application.

200: Fan system

210: Fan device

211: Fan unit

212: Detector

213: memory

220: controller

DPR: drive parameters

ORD: run original data

OSD: Operating Status Data

PTC: Data Protocol

REQ: Monitoring Request

SN: Warning Notification Signal

Claims (15)

A fan system comprising: Fan unit, including: fan unit; a detector configured to detect an operating condition of the fan unit during operation to obtain operating raw data corresponding to the operating condition; and a memory, coupled to the detector, operative to record the operational raw data, and to store data protocols; and a controller configured to provide a monitoring request, causing the memory to respond to the monitoring request to provide the operating raw data and the data protocol to the controller, using the data protocol to convert the operating raw data to the controller The data is converted into operating status data, and an early warning notification signal is provided based on the operating status data, Wherein when the original operating data is provided to the controller, the original operating data stored in the memory is erased. The fan system of claim 1, wherein: the format of the operating raw data is a data format suitable for the fan unit, and The format of the running status data is a data format that can be recognized by the controller. The fan system of claim 1, wherein the controller is further configured to: When the operating state data is judged to be greater than a preset value, the early warning notification signal is provided. The fan system of claim 1, wherein: said operating status data includes a total operating time of said fan unit, The controller is also configured to: judging whether the total running time length is greater than a preset time length, and When the total running time length is greater than a preset time length, the warning notification signal corresponding to the total running time length being greater than a preset time length is provided. The fan system of claim 1, wherein: The operating state data includes a driving current value for driving the fan unit, The controller is also configured to: judging whether the drive current value is greater than a preset current value, and When the driving current value is greater than a preset current value, the warning notification signal corresponding to the driving current value being greater than a preset current value is provided. The fan system of claim 1, wherein: The operating status data includes ambient temperature values, The controller is also configured to: judging whether the ambient temperature value is greater than a preset temperature value, and When the ambient temperature value is greater than a preset temperature value, the warning notification signal corresponding to the ambient temperature value being greater than a preset temperature value is provided. The fan system as claimed in claim 1, wherein the fan device further comprises: a timer configured to time the operating time of the fan unit. The fan system as described in claim 1, further comprising: The monitoring terminal is configured to collect the early warning notification signal through the controller, and release the early warning notification signal. A monitoring method for a fan system, wherein the fan system includes a fan device and a controller, wherein the fan device includes a fan unit and a memory, and the monitoring method includes: driving the fan unit, and detecting the operating condition of the fan unit during operation to obtain operating raw data corresponding to the operating condition; recording the running raw data in the memory; providing a monitoring request with the controller, causing the memory to respond to the monitoring request to provide the running raw data and the data protocol to the controller, and using the data protocol to send the running raw data The data is converted into running status data; erasing the running raw data stored in the memory when the running raw data is provided to the controller; and The controller is used to provide an early warning notification signal according to the operating state data. The monitoring method as described in claim item 9, wherein: the format of the operating raw data is a data format suitable for the fan unit, and The format of the running status data is a data format that can be recognized by the controller. The monitoring method as described in claim 9, wherein the step of using the controller to provide the early warning notification signal according to the operating status data includes: When the operating state data is judged to be greater than a preset value, the controller is used to provide the early warning notification signal. The monitoring method according to claim 9, wherein the operating state data includes the total operating time of the fan unit, and the step of using the controller to provide the early warning notification signal according to the operating state data includes: Using the controller to determine whether the total running time length is greater than a preset time length; and When the total running time is greater than a preset time, the controller is used to provide the warning notification signal corresponding to the total running time being greater than a preset time. The monitoring method according to claim 9, wherein the operating state data includes a driving current value for driving the fan unit, wherein the step of using the controller to provide the early warning notification signal according to the operating state data includes : using the controller to determine whether the driving current value is greater than a preset current value, and When the driving current value is greater than a preset current value, the controller is used to provide the warning notification signal corresponding to the driving current value being greater than a preset current value. The monitoring method according to claim 9, wherein the operating state data includes an ambient temperature value, and the step of using the controller to provide the early warning notification signal according to the operating state data includes: Using the controller to determine whether the ambient temperature value is greater than a preset temperature value, and When the ambient temperature value is greater than a preset temperature value, the controller is used to provide the early warning notification signal corresponding to the ambient temperature value being greater than a preset temperature value. The monitoring method as described in claim item 9, further comprising: Time the running time of the fan unit.

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